CN111799123B - Static contact component and isolating switch using same - Google Patents
Static contact component and isolating switch using same Download PDFInfo
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- CN111799123B CN111799123B CN201910276959.0A CN201910276959A CN111799123B CN 111799123 B CN111799123 B CN 111799123B CN 201910276959 A CN201910276959 A CN 201910276959A CN 111799123 B CN111799123 B CN 111799123B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
Abstract
The invention relates to a static contact component and an isolating switch using the same. The static contact component comprises a static contact seat and a contact finger component, the contact finger component comprises an annular support, a plurality of mounting groove structures are arranged on the annular support, contact finger petals are mounted in the mounting groove structures, the front ends of the contact finger petals extending out of the mounting groove structures are surrounded to form insertion spaces for adaptive contacts to insert, the static contact seat comprises a columnar base body, a mounting ring groove is formed in the front end of the columnar base body, the rear ends of the contact finger petals are inserted into the mounting ring groove, spherical convex parts are arranged at the rear ends of the contact finger petals and are in conductive butt joint with the corresponding groove walls of the mounting ring groove, the static contact component further comprises retaining ring structures located on the outer sides of the contact finger petals, elastic reeds are clamped between the retaining ring structures and the contact finger petals, and retaining structures for preventing the contact finger petals from being separated from the front sides of the mounting ring groove are further arranged on the static contact seat. The contact finger lobe can swing by taking the spherical convex part as a fulcrum, so that the automatic centering of the contact finger lobe and the adaptive contact is realized.
Description
Technical Field
The invention relates to a static contact component and an isolating switch using the same.
Background
Gas insulated metal enclosed switchgear (GIS) is used as basic equipment of a power system, and gradually gains market confidence by the characteristics of high parameter, integration, stable operation and the like. The isolating switch device is one of the important components of GIS equipment, and its maximum function is to reliably isolate power supply in power system. When the isolating switch is in a closed state, the conducting system can pass normal working current and short-circuit current under a fault; when the isolating switch is in an opening state, the isolating fracture is not allowed to have insulation breakdown in any state.
Chinese utility model patent that the grant bulletin number is CN202454478U, the grant bulletin date is 2012.09.26 discloses a three-station switch, this three-station switch is including installing earthing switch in the casing, isolator and transmission, horizontal migration's conducting rod (being the movable contact rod) about can having in the isolator, the right-hand member correspondence of conducting rod is used for putting through the contact of circuit (being the contact finger of installing on the stationary contact seat promptly), transmission includes the rack, the gear and the pivot that drives gear revolve, the rack of drive conducting rod is fixed on the conducting rod, install the lower extreme in the pivot with rack complex gear.
When the three-position switch is used, the conductive rod is driven to move by the transmission of the gear and the rack so as to realize the opening and closing operation of the isolating switch. When the GIS runs for a long time, along with the increase of the times of opening and closing operations, the matching precision between the contact fingers of the movable contact rod and the static contact base is reduced, so that the contact fingers of the movable contact rod and the static contact base can be poorly aligned, abnormal abrasion between the contact fingers of the movable contact rod and the static contact base is caused, a large amount of metal foreign bodies can be generated on two sides of a fracture of the isolating switch when the abrasion is serious, and the existence of the metal foreign bodies can cause the insulation damage of the isolating switch equipment; meanwhile, poor centering can also cause uneven contact pressure between the movable contact rod and the contact finger of the static contact base, so that uneven change of the circumferential direction of the contact resistance is caused, local temperature rise is abnormal when a product runs through the current for a long time, and if fault current occurs, equipment can be even burnt.
Disclosure of Invention
The invention aims to provide a static contact assembly to solve the problem that the existing contact assembly cannot be well aligned with an adaptive contact when in use; meanwhile, the invention also provides an isolating switch using the static contact assembly, so as to solve the problem that the existing contact assembly cannot be well aligned with the adaptive contact when in use.
In order to solve the technical problem, the technical scheme of the static contact assembly is as follows:
the static contact assembly comprises a static contact seat and a contact finger assembly, wherein the contact finger assembly comprises an annular support, a plurality of installation groove structures with openings facing outwards in the radial direction are uniformly arranged on the annular support along the circumferential direction of the annular support, contact finger petals are installed in the installation groove structures, the front ends of the contact finger petals extending out of the installation groove structures are surrounded to form insertion spaces for insertion of adaptive contacts, the static contact seat comprises a columnar base body, an installation ring groove with an opening facing the insertion direction is formed in the front end of the columnar base body, the rear ends of the contact finger petals are inserted into the installation ring groove, spherical convex parts are arranged at the rear ends of the contact finger petals and are in conductive butt joint with corresponding groove walls of the installation ring groove so as to swing adaptively to realize centering when the adaptive contacts are inserted, the static contact assembly further comprises a retaining ring structure positioned on the outer sides of the contact finger petals, elastic spring leaves are clamped between the retaining ring structure and the contact finger petals, the contact finger petals are tightly pressed in the installation groove structures under the elastic action of the corresponding elastic spring leaves, and a retaining structure for preventing the contact finger petals from coming off from the front sides of the installation ring groove grooves is further arranged on the static contact seat.
The technical scheme has the beneficial effects that: the contact finger flap is abutted against the corresponding groove wall of the mounting ring groove of the static contact seat through the spherical convex part at the rear end, when the adaptive contact is inserted, the contact finger flap can swing by taking the spherical convex part as a fulcrum, namely the contact finger flap can be automatically adjusted according to relative deviation during insertion, and radial swing in any direction is realized around the spherical convex part, so that automatic centering of the contact finger flap and the adaptive contact is realized; after the contact finger flap swings, the elastic reed is radially extruded, and under the action of the retaining ring structure, the elastic reed exerts radial acting force on the contact finger flap to compress the contact finger flap in the mounting groove structure, so that the contact pressure of the contact finger flap and the adaptive contact is uniform.
Furthermore, the spherical convex part comprises a rear convex part positioned on the rear end surface of the contact finger flap and an inner convex part positioned on the inner side surface of the contact finger flap, and the rear convex part and the inner convex part are respectively in conductive butt joint with the corresponding groove walls of the mounting ring grooves. The spherical convex part comprises a rear convex part and an inner convex part which are respectively in conductive abutment with the corresponding groove wall of the mounting ring groove, so that the conductivity of the contact finger flap during swinging can be enhanced.
Furthermore, the spherical convex part is arranged at the corner of the rear end surface and the inner side surface of the finger contact lobe. The contact area of the spherical convex part and the mounting ring groove can be increased, and the structural design enables later-stage processing and manufacturing to be more convenient.
Furthermore, the elastic spring leaf is of an arch structure extending forwards and backwards, the middle part of the elastic spring leaf is arranged in a protruding mode back to the finger touching petal, and blocking edges matched with the arch two ends of the elastic spring leaf in a blocking mode in the front and back directions are arranged on the outer side face of the corresponding finger touching petal. The arched elastic spring leaf is more stable for elastic support when the contact finger flap swings.
Furthermore, the static contact assembly comprises a shielding cover fixed on the outer side of the columnar base body, a blocking edge extending inwards and blocking the front side of the contact finger flap is arranged on the inner side of the front end of the shielding cover, and the blocking edge and the contact finger flap are in limit fit to form the blocking structure. The integration of shielding and spacing dual-purpose is realized through the shielding case, the structure is simpler, and later-stage assembly is facilitated.
Further, keep off the ring structure and establish the ring cover in the outside of ring carrier for the cover, the fixed contact subassembly still includes and is prevented the spacing limit structure who deviates from forward of ring cover with the spacing cooperation of ring cover. The ring sleeve, the elastic spring, the contact finger flap and the annular bracket can be assembled into a whole, and the installation is convenient.
Furthermore, the static contact component comprises a shielding cover fixed on the outer side of the columnar base body, a ring platform which extends backwards and is in limit fit with the front end of the ring sleeve is arranged on the inner side of the front end of the shielding cover, and the ring platform forms the limit structure. The integration of the dual functions of shielding and limiting is realized through the shielding cover, and the structure is simple.
Further, the finger-touching petal comprises a straight section of a rear section and an inward-bending section which is connected at the front end of the straight section and is bent inwards, the mounting groove structure is matched with the straight section in a supporting mode, and the front end of the mounting groove structure is matched with the root of the rear end of the inward-bending section in a positioning mode. The installation and the positioning of the finger flap and the annular bracket can be conveniently realized through the arrangement mode.
The technical scheme of the isolating switch is as follows:
the isolating switch comprises a shell, a moving contact component and a static contact component which are installed in the shell, wherein a transmission structure for driving the moving contact component to perform inserting action is further installed in the shell, the static contact component comprises a static contact seat and a contact finger component, the contact finger component comprises an annular support, a plurality of installation groove structures with radially outward openings are uniformly arranged on the annular support along the circumferential direction of the annular support, contact finger flaps are installed in the installation groove structures, the front ends of the contact finger flaps extending out of the installation groove structures are enclosed to form an inserting space for inserting an adaptive contact, the static contact seat comprises a columnar base body, an installation ring groove with an opening facing the inserting direction is formed in the front end of the columnar base body, the rear ends of the contact finger flaps are inserted into the installation ring groove, spherical convex parts are arranged at the rear ends of the contact finger flaps, the spherical convex parts are abutted with corresponding groove walls of the installation ring grooves in a conductive manner so as to swing adaptively to realize centering when the contact finger is inserted into the adaptive contact, a retaining ring structure located outside each contact finger flap is further arranged, elastic reeds are clamped between the retaining ring structures and the retaining ring grooves are arranged on the static contact finger flaps to prevent the installation groove from being separated from the installation groove under the elastic effect of the corresponding elastic effect of each reed.
The technical scheme has the beneficial effects that: the contact finger flap is abutted against the corresponding groove wall of the mounting ring groove of the static contact base through the spherical convex part at the rear end, when the adaptive contact is inserted, the contact finger flap can swing by taking the spherical convex part as a fulcrum, namely the contact finger flap can be automatically adjusted according to relative deviation during insertion, and radial swing in any direction is realized around the spherical convex part, so that automatic centering of the contact finger flap and the adaptive contact is realized; after the contact finger valve swings, the elastic reed is radially extruded, and under the action of the retaining ring structure, the elastic reed exerts radial acting force on the contact finger valve to tightly press the contact finger valve in the mounting groove structure, so that the contact pressure between the contact finger valve and the adaptive contact is uniform.
Furthermore, the spherical convex part comprises a rear convex part positioned on the rear end surface of the contact finger petal and an inner convex part positioned on the inner side surface of the contact finger petal, and the rear convex part and the inner convex part are respectively in conductive butt joint with the corresponding groove walls of the mounting ring groove. The spherical convex part comprises a rear convex part and an inner convex part which are respectively in conductive butt joint with the corresponding groove wall of the mounting ring groove, so that the conductivity of the contact finger flap during swinging can be enhanced.
Furthermore, the spherical convex part is arranged at the corner of the rear end surface and the inner side surface of the finger contact lobe. The contact area of the spherical convex part and the mounting ring groove can be increased, and the structural design enables later-stage processing and manufacturing to be more convenient.
Furthermore, the elastic spring leaf is of an arch structure extending forwards and backwards, the middle part of the elastic spring leaf is arranged in a protruding mode back to the finger touching petal, and blocking edges matched with the arch two ends of the elastic spring leaf in a blocking mode in the front and back directions are arranged on the outer side face of the corresponding finger touching petal. The arched elastic reed can more stably support the contact finger flap when swinging.
Furthermore, the static contact assembly comprises a shielding cover fixed on the outer side of the columnar base body, a blocking edge extending inwards and blocking the front side of the contact finger flap is arranged on the inner side of the front end of the shielding cover, and the blocking edge and the contact finger flap are in limit fit to form the blocking structure. The integration of shielding and spacing dual-purpose is realized through the shielding case, the structure is simpler, and later-stage assembly is facilitated.
Further, keep off the ring structure and establish the ring cover in the outside of ring carrier for the cover, the fixed contact subassembly still includes and is prevented the spacing limit structure who deviates from forward of ring cover with the spacing cooperation of ring cover. The ring sleeve, the elastic reed, the contact finger flap and the ring-shaped support can be assembled into a whole, and the installation is convenient.
Furthermore, the static contact component comprises a shielding cover fixed on the outer side of the columnar base body, a ring platform extending backwards and matched with the front end of the ring sleeve in a limiting manner is arranged on the inner side of the front end of the shielding cover, and the ring platform forms the limiting structure. The integration of the dual functions of shielding and limiting is realized through the shielding cover, and the structure is simple.
Further, the finger-touching petal comprises a straight section of a rear section and an inward-bending section which is connected at the front end of the straight section and is bent inwards, the mounting groove structure is matched with the straight section in a supporting mode, and the front end of the mounting groove structure is matched with the root of the rear end of the inward-bending section in a positioning mode. The installation and the positioning of the finger flap and the annular bracket can be conveniently realized through the arrangement mode.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of the disconnecting switch of the present invention;
FIG. 2 is a schematic structural view of a stationary contact assembly of the isolator switch of FIG. 1;
FIG. 3 is an enlarged, fragmentary schematic view of the stationary contact assembly of FIG. 2;
fig. 4 is a schematic structural view of a ring support of the fixed contact assembly of fig. 2.
The respective symbols in the figure: 1. a housing; 2. a stationary contact base; 21. a columnar matrix; 22. an arcing contact; 23. mounting a ring groove; 3. a basin-type insulator; 4. a shield case; 41. blocking edges; 5. an annular support; 51. a mounting groove structure; 6. a finger touch pad; 61. a straight section; 62. an inward bending section; 63. a rear projection; 64. an inner convex portion; 7. sleeving a ring; 8. an elastic reed; 9. a conductor; 10. a movable contact rod; 11. a watchband contact finger; 12. a ball bearing; 13. a gear shaft; 14. a rack; 15. a transmission rod.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
Embodiment 1 of the disconnecting switch of the present invention, as shown in fig. 1 to 4, includes a housing 1, and a movable contact assembly and a fixed contact assembly mounted in the housing 1, a transmission structure for driving the movable contact assembly to perform an insertion and closing motion is further mounted in the housing 1, and an isolation break is provided between the fixed contact assembly and the movable contact assembly.
As shown in fig. 1, 2 and 3, the fixed contact assembly includes a fixed contact base 2 and a contact finger assembly. The static contact seat 2 comprises a columnar base body 21, the shell 1 is provided with a vertically-arranged basin-type insulator 3, the columnar base body 21 of the static contact seat 2 is fixed on a metal insert of the basin-type insulator 3, one end, used for being connected with the moving contact component in an inserting mode, of the static contact component is defined to be the front end, one side, close to the center of the columnar base body 21, of the static contact component is defined to be the inner side, and the front end of the columnar base body 21 is provided with an arc contact 22. The front end of the columnar base body 21 is provided with an installation ring groove 23 with a forward opening for inserting the contact finger assembly, the exterior of the columnar base body 21 is fixedly connected with the shielding cover 4 through a screw, the inner side surface of the front end of the shielding cover 4 is provided with a blocking edge 41 extending inwards, and the blocking edge 41 forms a blocking structure for blocking the contact finger petals 6 of the contact finger assembly in the installation ring groove 23 along the front-back direction so as to prevent the contact finger petals 6 from being separated from the front side of the installation ring groove 23.
As shown in fig. 2, fig. 3 and fig. 4, the contact finger assembly includes an annular support 5 disposed at the front side of the columnar base 21, a plurality of mounting groove structures 51 with radially outward openings are uniformly disposed on the outer wall of the annular support 5 along the circumferential direction of the annular support, the mounting groove structures 51 extend along the axial direction of the annular support 5, and the mounting groove structures 51 are U-shaped grooves. Install foretell finger petal 6 of touching in mounting groove structure 51, touch finger petal 6 and include that the fore-and-aft direction extends and lie in the straight section 61 of back end and connect the incurved section 62 at straight section 61 front end, incurve section 62's front end is inwards buckled, the rear end of straight section 61 inserts in the installation annular groove 23 of stationary contact seat 2, mounting groove structure 51 supports the cooperation with straight section 61, and mounting groove structure 51's front end and incurved section 62's rear end root position fit. The inwardly bent sections 62 of the contact finger sections 6 are relatively enclosed to form an insertion space into which the movable contact 10 of the movable contact assembly is inserted.
As shown in fig. 2 and 3, a spherical rear protrusion 63 is provided on a rear end surface of the flat section 61 of the finger contact flap 6, a spherical inner protrusion 64 is provided on an inner side surface of the flat section 61, the finger contact flap 6 is in conductive contact with a corresponding groove wall of the mounting ring groove 23 of the stationary contact base 2 through the rear protrusion 63 and the inner protrusion 64 so as to swing adaptively and realize centering when the movable contact rod 10 is inserted, the rear protrusion 63 and the inner protrusion 64 form a spherical protrusion on the finger contact flap 6, and the finger contact flap 6 can swing freely in any direction along a radial direction around a contact point of the spherical protrusion and the corresponding groove wall under the action of the spherical protrusion, thereby realizing adjustment of the finger contact flap 6 in a designed size and realizing free centering adjustment with the movable contact rod 10.
The outer side of each finger-touching section 6 is provided with a ring sleeve 7, the ring sleeves 7 are in limit fit with the finger-touching sections 6 to form a retaining ring structure, and the arrangement form of the ring sleeves 7 can enable the ring sleeves 7, the finger-touching sections 6 and the annular support 5 to form integral assembly, so that the installation is convenient. Elastic reeds 8 are respectively clamped between the ring sleeve 7 and each finger contact flap 6, the elastic reeds 8 are of an arch structure with the middle part protruding outwards, blocking edges blocked with the front and the back of the two ends of each elastic reed 8 are respectively arranged on the front and the back of the outer side surface of each finger contact flap 6, specifically, clamping grooves are arranged on the outer side surfaces of the finger contact flaps 6, each clamping groove is provided with a front groove wall and a back groove wall, the elastic reeds 8 are assembled in the clamping grooves, the blocking edges are formed on the groove walls on the two sides, and when the movable contact rod 10 is inserted into an insertion space formed by the finger contact flaps 6, each finger contact flap 6 can be tightly pressed in the mounting groove structure 51 under the elastic action of the elastic reeds 8. Meanwhile, the inner side surface of the front end of the shielding cover 4 extends backwards to form a ring platform which is in limit fit with the front end of the ring sleeve 7, and the ring platform forms a limit structure for preventing the ring sleeve 7 from being separated forwards.
As shown in fig. 1, a basin-type insulator 3 horizontally arranged is further disposed in the housing 1, the movable contact assembly includes a conductor 9 horizontally arranged on the basin-type insulator 3 and a movable contact rod 10 movably assembled in the conductor 9, a strap contact finger 11 is assembled between the outer side of the movable contact rod 10 and the conductor 9, and the conductor 9 and the movable contact rod 10 are in conductive connection through the strap contact finger 11. The conductor 9 is provided with a ball bearing 12, a gear shaft 13 is assembled in the ball bearing 12, the axial direction of the gear shaft 13 is vertical to the moving direction of the movable contact rod 10, a rack 14 matched with the gear shaft 13 is fixed on the outer wall of the movable contact rod 10 through a bolt, a transmission rod 15 driving the gear shaft 13 to rotate is arranged on the shell 1, and the rack 14, the gear shaft 13, the ball bearing 12 and the transmission rod 15 form a transmission structure driving the movable contact rod 10 to perform inserting and combining actions.
When the isolating switch is used, the contact finger flap 6 is assembled in the mounting groove structure 51 of the annular support 5, the periphery of the contact finger flap 6 is fixed through the ring sleeve 7, the elastic reeds 8 are respectively mounted between each contact finger flap 6 and the ring sleeve 7 for supporting, the annular support 5, the contact finger flap 6, the elastic reeds 8 and the ring sleeve 7 form a whole (namely a contact finger assembly) which is inserted in the mounting ring groove 23 of the columnar matrix 21 of the static contact base 2, the shielding cover 4 is fixed on the columnar matrix 21 through screws, and the blocking edge 41 on the inner side surface of the shielding cover 4 blocks the inward bent section 62 of the contact finger flap 6 from the front and back to prevent the contact finger flap 6 from being separated from the mounting ring groove 23; the gear shaft 13 is driven to rotate through the transmission rod 15, the gear shaft 13 is matched with the rack 14 on the movable contact rod 10 to drive the movable contact rod 10 to perform insertion and closing actions, the movable contact rod 10 crosses the isolation fracture and is inserted into an insertion and closing space of the contact finger flap 6, and the contact finger flap 6 can swing in the radial direction and the circumferential direction under the action of the inner convex part 64 and the rear convex part 63, so that automatic centering adjustment is realized with the movable contact rod 10; when the movable contact rod 10 is in contact with the contact finger flap 6 and the arcing contact 22, the contact finger flap 6 is pressed outwards by the contact rod 10 to force the contact finger flap 6 to press the elastic reed 8, the contact finger flap 6 is pressed in the mounting groove structure 51 under the elastic force of the elastic reed 8, sufficient and uniform contact pressure is kept between the contact finger flap 6 and the movable contact rod 10, and the stability of the isolating switch in the long-term operation process is ensured.
The elastic spring 8 in this embodiment is a plate spring, and in other embodiments, may be a metal elastic sheet.
The ring platform in this embodiment forms a limiting structure, and in other embodiments, a radially extending insulating pin for limiting and matching with the ring sleeve can be arranged on the columnar base body.
In other embodiments, the mounting groove structure on the annular bracket can be V-shaped or other shapes.
In other embodiments, the finger contact flaps may have an L-shaped structure or a straight plate shape, and are provided with inward convex contact protrusions at the front ends of the inner sides.
The specific structure of the embodiment of the fixed contact assembly of the present invention is the same as that of the fixed contact assembly in any embodiment of the isolating switch, and details are not repeated here.
Claims (7)
1. The static contact assembly is characterized in that: the static contact assembly comprises a static contact seat and a contact finger assembly, wherein the contact finger assembly comprises an annular support, a plurality of installation groove structures with openings facing outwards in the radial direction are uniformly arranged on the annular support along the circumferential direction of the annular support, contact finger petals are installed in the installation groove structures, the front ends of the contact finger petals extend out of the installation groove structures to form an insertion space for inserting an adaptive contact, the static contact seat comprises a columnar base body, the front end of the columnar base body is provided with an installation ring groove with an opening facing the insertion direction, the rear ends of the contact finger petals are inserted into the installation ring groove, the rear ends of the contact finger petals are provided with spherical convex parts, the spherical convex parts are in conductive butt joint with corresponding groove walls of the installation ring groove so as to swing adaptively to realize centering when the adaptive contact is inserted into the adaptive contact, the static contact assembly further comprises a retaining ring structure positioned at the outer side of each contact finger petal, elastic reeds are clamped between the retaining ring structure and each contact finger petal, each contact finger petal is tightly pressed in the installation groove structure under the elastic action of the corresponding elastic reeds, and a retaining structure for preventing the contact finger petals from falling off from the front side of the installation ring groove;
the fixed contact assembly also comprises a limiting structure which is in limiting fit with the ring sleeve to prevent the ring sleeve from being separated forwards;
the static contact component comprises a shielding cover fixed on the outer side of the columnar base body, the inner side of the front end of the shielding cover is provided with a ring platform which extends backwards and is in limit fit with the front end of the ring sleeve, and the ring platform forms the limit structure.
2. The stationary contact assembly of claim 1, wherein: the spherical convex part comprises a rear convex part and an inner convex part, the rear convex part is positioned on the rear end face of the contact finger valve, the inner convex part is positioned on the inner side face of the contact finger valve, and the rear convex part and the inner convex part are respectively in conductive butt joint with the corresponding groove walls of the mounting ring grooves.
3. The stationary contact assembly of claim 1, wherein: the spherical convex part is arranged at the corner of the rear end surface and the inner side surface of the contact finger lobe.
4. The static contact component according to any one of claims 1 to 3, wherein: the elastic reeds are of arch structures extending forwards and backwards, the middle parts of the elastic reeds are arranged in a protruding mode back to the finger touching petals, and blocking edges matched with the arch two ends of the elastic reeds in a blocking mode in the front-back direction are arranged on the outer side faces of the corresponding finger touching petals.
5. The static contact component according to any one of claims 1 to 3, wherein: the static contact assembly comprises a shielding cover fixed on the outer side of the columnar base body, a blocking edge extending inwards and blocking the front side of the touch finger flap is arranged on the inner side of the front end of the shielding cover, and the blocking edge and the touch finger flap are in limit fit to form the blocking structure.
6. The static contact component according to any one of claims 1 to 3, wherein: the finger-touching valve comprises a straight section of a rear section and an inward-bending section which is connected at the front end of the straight section and is bent inwards, the mounting groove structure is matched with the straight section in a supporting mode, and the front end of the mounting groove structure is matched with the root of the rear end of the inward-bending section in a positioning mode.
7. Isolator, including the casing and install moving contact subassembly and the static contact subassembly in the casing, still install the transmission structure that drives moving contact subassembly and insert the action of closing in the casing, its characterized in that: the static contact component is the static contact component as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276959.0A CN111799123B (en) | 2019-04-08 | 2019-04-08 | Static contact component and isolating switch using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910276959.0A CN111799123B (en) | 2019-04-08 | 2019-04-08 | Static contact component and isolating switch using same |
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| Publication Number | Publication Date |
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| CN111799123A CN111799123A (en) | 2020-10-20 |
| CN111799123B true CN111799123B (en) | 2023-01-03 |
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| CN114597081A (en) * | 2021-12-21 | 2022-06-07 | 河南平高通用电气有限公司 | Contact finger structure and switch equipment using same |
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| US4500762A (en) * | 1982-03-25 | 1985-02-19 | Mitsubishi Denki Kabushiki Kaisha | Resistor-type disconnecting switch for circuit breaker |
| CN1087202A (en) * | 1992-11-05 | 1994-05-25 | 三菱电机株式会社 | Gas-insulated switchgear device with structure of removing metallic particles impurity |
| CN200944352Y (en) * | 2006-08-24 | 2007-09-05 | 周新辉 | High-current grounding switch static contact device |
| CN1933077A (en) * | 2006-09-11 | 2007-03-21 | 浙江华仪电器科技股份有限公司 | Isolated switch main contact for circuit breaker combined electric appliance |
| CN201435310Y (en) * | 2009-06-09 | 2010-03-31 | 温州新机电气配套有限公司 | Tulip contact |
| CN201570385U (en) * | 2009-09-03 | 2010-09-01 | 厦门威尔圣电气实业有限公司 | Improved conformation of quincunx contact |
| CN102904185A (en) * | 2011-07-25 | 2013-01-30 | Ls产电株式会社 | Gas insulated switchgear |
| CN102709100A (en) * | 2012-05-16 | 2012-10-03 | 平高集团有限公司 | Three-station isolating grounding switch |
| CN203552958U (en) * | 2013-11-14 | 2014-04-16 | 河南平高东芝高压开关有限公司 | Large-current isolation switch structure |
| CN105448549A (en) * | 2015-11-25 | 2016-03-30 | 河南平芝高压开关有限公司 | Contact assembly and grounding switch using the same, metal-enclosed switchgear |
| CN206595161U (en) * | 2017-02-10 | 2017-10-27 | 平高集团有限公司 | A kind of static contact finger and the static contact and arc-chutes using the static contact finger |
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